201231945

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 398361600

約数和(自身を除く): 197129655

約数列:

[1, 3, 5, 9, 15, 19, 23, 27, 45, 57, 69, 81, 95, 115, 135, 171, 207, 243, 285, 345, 379, 405, 437, 513, 621, 855, 1035, 1137, 1215, 1311, 1539, 1863, 1895, 2185, 2565, 3105, 3411, 3933, 4617, 5589, 5685, 6555, 7201, 7695, 8717, 9315, 10233, 11799, 17055, 19665, 21603, 23085, 26151, 27945, 30699, 35397, 36005, 43585, 51165, 58995, 64809, 78453, 92097, 106191, 108015, 130755, 153495, 165623, 176985, 194427, 235359, 324045, 392265, 460485, 496869, 530955, 583281, 706077, 828115, 972135, 1176795, 1490607, 1749843, 2118231, 2484345, 2916405, 3530385, 4471821, 7453035, 8749215, 10591155, 13415463, 22359105, 40246389, 67077315, 201231945]

約数ペア:

[(1, 201231945), (3, 67077315), (5, 40246389), (9, 22359105), (15, 13415463), (19, 10591155), (23, 8749215), (27, 7453035), (45, 4471821), (57, 3530385), (69, 2916405), (81, 2484345), (95, 2118231), (115, 1749843), (135, 1490607), (171, 1176795), (207, 972135), (243, 828115), (285, 706077), (345, 583281), (379, 530955), (405, 496869), (437, 460485), (513, 392265), (621, 324045), (855, 235359), (1035, 194427), (1137, 176985), (1215, 165623), (1311, 153495), (1539, 130755), (1863, 108015), (1895, 106191), (2185, 92097), (2565, 78453), (3105, 64809), (3411, 58995), (3933, 51165), (4617, 43585), (5589, 36005), (5685, 35397), (6555, 30699), (7201, 27945), (7695, 26151), (8717, 23085), (9315, 21603), (10233, 19665), (11799, 17055)]